5721640

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{457}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 12943080

約数和(自身を除く): 7221440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 457, 626, 914, 1252, 1565, 1828, 2285, 2504, 3130, 3656, 4570, 6260, 9140, 12520, 18280, 143041, 286082, 572164, 715205, 1144328, 1430410, 2860820, 5721640]

約数ペア:

[(1, 5721640), (2, 2860820), (4, 1430410), (5, 1144328), (8, 715205), (10, 572164), (20, 286082), (40, 143041), (313, 18280), (457, 12520), (626, 9140), (914, 6260), (1252, 4570), (1565, 3656), (1828, 3130), (2285, 2504)]